Mountaindewed, it absolutely sounds like disconcerting behavior from your former therapist. I agree that blocking her was a good mood. We can't know if she has dementia (or something else), but the behavior is an inappropriate countertransference of some sort. I agree with others that if she continues to strive to contact you that you must nicely tell her to stop all contact. If she persists, you will need to perhaps go even further (contact authorities). The latter sounds rough, and should be a last resort, but could be necessary. This situation is not good for you, and isn't good for her either.